Stove



(No Model.) .2 sheets- Sheet 1.

W. H. CLARK & F. W. COLLINS.

Y STOVE.

No. 430,923. Patented June 24, 1890.

2N I l i.. L O O W UL o@ K Dm.. A L C H W STOVB.

No. 430,923. Patented June 24, 1890.

@mfom/tow ivd. Mvg/LM* www Wwf UNITED STATES VILLIAM H. CLARK AND FRANK NV. COLLINS, OF CORTLAND, NEW YORK;

A PATENT OEEICE.

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SPECIFICATION forming part of LettersPatent No. 430,923, dated June 24, 1890.

Application filed February 26, `1390. Serial No. 341.738. (No model.)

.To all whom it may concern.-

Beit known that we, WILLIAM H. CLARK and FRANK WV. COLLINS, residing at Cort land, in the county of Cortland and State of New York, have invented certain new and useful Improvements in Stoves, of which the following is aspeciiication, reference being had therein to the accompanying drawings.

This invention relates to heating-stoves of the class which take in fresh air from outside the room or house, and after heating it discharge it into the room, and at the same time exhaust the foul air from the room and convey it out of the chimney. f

The object of the present invention is to improve the construction of the stove in relation to the cool-air chamber and ducts and some other parts of the stove. Figure l is a central vertical section of a stove containing the improvements. Fig. 2 is a section on line w Fig. 1. Fig. 2 is a section on line y y, Fig. 1. Fig. 3 is a perspective of the sub-base piece of the stove. Fig. 4 is a perspective of the part forming the fresh-air chamber detached. Fig. 5 is a perspective of the base of the stove. Figs. 6, 7, and 8 are details hereinafter referred to. Fig. 9 is a perspective of ash-pit section and base partly broken away.

The numeral l indicates the fresh-air pipe, which supplies air from outside the room and is connected to a iiange or collar 2, surrounding a hole 3 in the bottom piece or sub-base 4 of the stove. The sub-base 4 has a damper or register 5, which opens into a foul-air chamber 6. The box or chamber 6 is shown in Fig. 6, and is applied to the sub-base 4 so as to form a close joint along the lines a a, Fig. 3. The rear part 7 of the foul-air box is higher than the front step 8. A collar 9, having a flange 10, surrounds the opening 3 in the sub-base, being of the height of the step 8 of the foul-air box, and liange 10 rests in a groove in the front of step 8, forming a division or partition. The basin or vessel 11, which makes the lower wall of the cold-air chamber, rests on collar 9 and front step 8 of the foulair box. The collar 9 communicates with opening 13 in this chamber, and when the parts are assembled all these joints are packed or made tight, as putty joints.

The base 15 of the stove covers the freshair chamber, and has two openings 16 16 ateach end, which openings lead up into boxesr passes upward through openings 16 into theY end boxes of the ash-pit section 20. From.

the boxes 30 the fresh air, now considerably heated, passes up the pipes 31 near the corners of the stove, and so into the chamber l32,which surrounds the upper part of the combustion-chamber 39. From chamber 32 `the fresh air, now become heated, is allowed to escape from opening 33 into the room.

The foul-air box 6 has an opening 40 about semicircular in form. A semicircular pipe 4l, with a iiange 42, extends up from this opening 40, and this flange 42, with the pipe,

serves to divide the space 22 at the rear of` the ash-pit section, so as to form a downflue 23 and an upflue 24. As the downiue 23 is at one side of the foul-air box and its pipe, the products of combustion passing down this flue must move around the collar 3 in the di` rection of the arrows, Fig. 3, and so up the Hue 24. The products of combustion are thus brought into close contact with the outside of the fresh-air chamber; but as all thejoints are sealed there is no liability of the gases mingling with the fresh air. The pipe 41 may be continuous, but is preferably, as shown, in sections. The gases of combustion are conveyed to the upper end of iiue 23 in anymanner common in revertible-ue stoves. The general arrangement may be as usual, the smoke and gases passing down one line 23 and up the other 230, and so to pipe 46.

The foul-air box, through pipes and 45, ultimately communicates with the stove pipe or flue 46, so that the foul air received at the bottom of the stove passes up the chimney.

The fire-pot 35 and grate 36 may be of usual construction.

The magazine 37 is preferably connected to the upper or magazine section of the IOO combustion-chamber.

stove, and openings 51 allow gas from the magazine to escape into the upper part of the The upper part of the magazine is turned in and depressed at 52, and a cover 53 below the top of the magazine serves to prevent the escape of gas from the magazine, save by the openings l. As the gas which rises in the magazine will have a tendency to rise as high as possible in the magazine, it will ascend above the depressed portion 52, and so pass out of the openings 51 and into the upper part of the combustion-chamber, where iit will either be ignited or drawn down the iiue 23, and so pass 0n with the products 0f combustion.

The top section of the stove is held on by bolts or rods 61, passing through the air-chamber 32, the heads or nuts 62 of said rods effeetually closing the opening around the rod,

`of. the base and sub-base, the foul-air box so that no gas escapes from the combustionchamber into chamber 32. So the air-chamber 32 is held to the tire-pot section by rods 63 the heads 64 of said rods serving to close the opening.

The foul-air box and its pipe form convenient partitions and are separable from the outer plates of the stove. This facilitates construction and repair. The broad and shallow fresh-air chamber is of such form as to apply the heat of the stove to advantage to the incoming fresh air and at the same time preserve its purity, which has not always been the case with stoves of this class. The fresh-air chamber has no supply-opening into the room and therefore cannot receive contaminated air.

What we claim isl, The combination, with the base of a ventilating-stove, of a separable foul-air chamber inclosed therein and forming a partial partition,a separable pipe leading from said foulair chamber to the pipe or flue, and a iiue passing down at one side of the foul-air pipe and around the foul-air chamber and up atk the other side of the foul-air pipe, substantially as described.

2. The combination,with the base and suby to make a partition, suitable passages leading from the fresh-air chamber to the heat-distributing chamber, and a revertible liue leading down from the combustion chamber, around the foul-air chamber and fresh-air supply, and so up to the smoke pipe or iiue, substantially as described.

3. The combination, in a Ventilating-stove,

therein, the revertible iiue formed by down- `passage 23 and 11p-passage 230, connected around the foul-air box, as described, and the foul-air pipe consisting of a semicireular tube and a flange forming a partition between the up and down flues and connected to the foulair box, substantially as described.

4. The combination, in a Ventilating-stove,

of the base and sub-base, the foul-air box therein, the collar 9, engaging said box to make a partition, the broad shallow vessel l1, arranged as described relatively to said foulair box and collar between the base and suba base, and the independent passages leading from said foul-air and fresh-air chambers, all relatively arranged substantially as described.

In testimony whereof we affix our signatures in presence of two witnesses.

WLLIAM H. CLARK. FRANK W. COLLINS. Witnesses:

F. CY. SHoAT, C. E. SELovER. 

